Zyxware Technologies just released open source software that allows to track epidemics, for example malaria.
Excerpts from their blog entry:
The GIS interface uses Google maps to present the data on a real time basis on a map of the state. Cases of diseases are represented by markers on the map and easy visual analysis [...]
This is a link to an example from the New York Times that tries to tell a spatial story. You can hover over the neighborhoods to see what stories relate there. In addition, and that’s even more interesting, you can hover over the squares at the bottom, for example “neighborhood makeup”.
Mapping the DuBois Philadelphia Negro is a recent project housed at the School of Design at the University of Pennsylvania and aimed at recreating the survey W.E.B. Du Bois conducted in 1896 that served as the basis for his 1899 classic, The Philadelphia Negro. Data will be mapped and analyzed using GIS and spatial statistical [...]